I really wish patrolling units didnt target buildings or vills

So I've been trying to do some more naval games because I almost never use it, and I figure best to be well rounded, but I keep running into the a problem with keep my navy useful.

I use cannon galleons to target buildings and have fireships and normal galleons to defend them, but if you set them to patrol the area so they will auto target enemies, they will end up going for buildings and you have to constantly micro your navy to do its damn job. Patrol should be looking for threats and only target enemies units and fortifications. The fact that my ships will end up either hitting worthless lumber camps or chase a villager around the shoreline.

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There is a point to micro, but patrol is meant to offset my attention for a time so I can work on other things, but instead if means I have to micro MORE.